The number of cycles obtainable under specific operating conditions while remaining within specified allowable degradation. A cycle is defined as one complete traversal of the wiper over the resistive element in both directions.

The number of hours at which a device may dissipate rated power under specified operating conditions while remaining within specified allowable degradations.

Defines the precision with which the output of a device can be set to the desired value.

The precision with which the output resistance of a device can be set to the desired value.

The precision with which the output voltage ratio of a device can be set to the desired value.

Dear clients, wish you enjoy a nice weekend with your families. ^_^

We cooperated with Setron from 2014, and it mergered with Arrow Electronics last year. Now we directly work with Arrow. Cheers!

Hope this can make you know more about us and share with us your precious business chance. We sincerely hope to become your strong backup force in your path to success.

Capacitor, Trimming potentiometerQuartz crystalDiode rectifierBridge rectifier
TransistorSurge arrester

Continuity is the maintenance of continuous electrical contact between the wiper and both end terminals of the resistive element.

The amount of change in the output voltage, without readjustment, expressed as a percentage of the total applied voltage.

The ability to withstand the application of a specified potential of a given characteristic, between the terminals and all other external conducting member such as shaft, housing and mounting hardware without exceeding a specified leakage current value.

The resistance to a specified dc voltage impressed between the terminals and all other external conducting members such as shaft, housing and mounting hardware.

The maximum power that a trimming potentiometer can dissipate across the total resistive element under specified conditions while meeting specified performance requirements.

We will have a CNY holiday soon, but we have specially prepared below stock for you. Don't worry about the lead time during this period.

Pls feel free to conatct us even in CNY holiday. Our sales office will be only closed from 6th Feb to 10th Feb.

Diode Rectifier:                                        
M7 DO-214AC T&R RoHS       10kkpcs stock  (replace diode S1M, SMD 1N4007, GS1M)
LL4148 LL-34 T&R RoHS        8kkpcs stock

Transistor BC847A/B/C SOT-23 T&R RoHS 
Transistor BC807-16/25/40 SOT-23 T&R RoHS

Switch diode BAV70 SOT-23 T&R RoHS 
Switch diode BAV99 SOT-23 T&R RoHS

The apparent resistance seen between the wiper and the resistance element when the wiper is energized with a specified current and moved over the adjustment travel in either direction at a constant speed. The output variations are measured over a specified frequency bandwidth, exclusive of the effects due to roll-on or roll-off of the terminations and is expressed in ohms or % of Rt.


(Wirewound only) Any spurious variation in the electrical output not present in the input, defined quantitatively in terms of an equivalent parasitic, transient resistance in ohms, appearing between the contact and the resistive element when the shaft is rotated or translated. The Equivalent Noise Resistance is defined independently of the resolution, functional characteristics and the total travel. The magnitude of the Equivalent Noise Resistance is the maximum departure from a specific reference line. The wiper of the potentiometer is required to be excited by a specific current and moved at a specific speed.

Happy New Year. Wish dear all good luck and good health in whole 2016.

The new year, the new beginning. We suggest you to consider our Kingtronics/Kt brand in 2016. Please kindly use 1 minute to check my below email. Thanks. (*^__^*) 

1. Do you buy Passive Components? If yes, are there any problems you're facing? Like quality, price, package and L/T...
    Passive Components including trimmerQuartz Crystalradial / axial type for MLCC and tantalum capacitors. We produce these parts with RoHS Compliant.

2. We're ISO 9001:2008 manufacturer since 1990. We have confidence to help you with above problems

a. Quality is very good with ISO, UL & SGS certificates
b. Prices are very competitive on the market

c. Durable package & punctual delivery time
3. We cooperate with Newark Farnell (Element 14), Avnet Abacus, Arrow Electronics, Compel, YE International...
    These distributors are well-known in the components field

4. Different from other suppliers, our service is very good & our brand enjoys good reputation worldwide. 
    We show our products at Electronica in Munich, Expo Electronica in Moscow, FIEE in Brazil & Asia Electronica in HK

5. Below our passive components for your study. Kindly please check if any exact inquiry for us. Look forward to your business chance in 2016! 
MKT: Radial multilayer ceramic capacitor
AKT: Axial multilayer ceramic capacitor
LKT: Chip multilayer ceramic capacitor
HKT: High voltage chip multilayer ceramic capacitor
TKT: Dipped tantalum capacitor
CKT: Chip tantalum capacitor
RKT: Trimmer potentiometer 3296 3006 3386 3266 3362 3329 3590S SMD C3305...
QKT: Quartz Crystal HC49SHC49UHC49SMD.

Regarding specification, please refer to our website

The difference between the total resistance values measured at a reference temperature of 25°C and the specified test temperature expressed as a percent of the Total Resistance.
R1 = Resistance at reference temperature (25°C) in ohms
R2 = Resistance at the test temperature in ohms

Dear Valued Customers,

Firstly, Kingtronics hope all of you and your familly have a prosperous New Year, we sincerely wish you happiness, cheerfulness and success. ^ ^

Besides, pls keep us informed once you need component support, we are always at you service, hope we win more business together in 2016. Cheers for New Year. 

We are always here for you!

1.> We are a HK based ISO manufacturer, producing components under our own registered brand Kt Kingtronics since 1990, ISO/SGS/RoHS certified 

2.> For a long-term cooperation, we sell our parts to Newark Farnell (Element 14), Avnet Abacus, Compel, YE International...enjoy good reputation in Europe, America, Asia, Afirica...

3.> Do you have related inquiries of trimmer potentiometer(cross Bourns/Vishay/Murata...)/multilayer ceramic capacitor&tantalum capacitor(cross Kemet/Vishay/AVX...)/diode rectifier(cross Diodes/Fairchild..)... welcome to check the best price with us

Contact us

Tel: (86) 769 8118 8110
Tel: (852) 8106 7033
Fax: (852) 8106 7099
Skype: kingtronics.sales


Kingtronics International Company was established in 1995 located in Dongguan City of China to handle all sales & marketing for factories located in Chengdu, Sichuan and Zhaoqing, Guangdong, China. In 1990, we established the first factory to produce trimming potentiometer and in 1999 we built up new factory in Zhao Qing, Guangdong. Now with around 850 workers, Kingtronics produce trimming potentiometers, dipped tantalum capacitors, multilayer ceramic capacitors, and diode & bridge rectifier. We sell good quality under our brand Kingtronics, and Kt, King, Kingtronics are our three trademarks. All our products are RoHS compliant, and our bridge rectifier have UL approval. Please visit our Products page, you could please download all our PDF datasheet and find cross reference for our Trimming Potentiometer and capacitors.

Tantalum and Ceramic Capacitors Cross Reference ↓ Download
Diodes & Rectifiers List(PDF: 97KB) ↓ Download
Trimming Potentiometer Cross Reference ↓Download

Meet Kingtronics in Moscow soon
Convention and Exhibition Centre,HongKong
Date: 13-16 October, 2019
Booth No.: 5G-C26

Meet Kingtronics in Munich soon
New Munich Trade Fair Centre, Germany
Date: 10-13 November, 2020
Booth No.: To be advised